Number of segments in the anal cerci of Cockroach is

Options

A. 12
B. 15
C. 18
D. 10

Answer

To determine the number of segments in the anal cerci of a cockroach, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Anatomy of Cockroach**:
- Cockroaches have a segmented body structure. They typically have a total of 12 segments in their body.

2. **Identify the Segments**:
- The cockroach's body is divided into three main parts: the head, thorax, and abdomen. The abdomen consists of 10 segments.

3. **Locate the Anal Cerci**:
- The anal cerci are located on the last segment of the abdomen, which is the 10th segment.

4. **Count the Segments in Anal Cerci**:
- The anal cerci themselves are not made up of multiple segments but are appendages that arise from the 10th abdominal segment. Each cerci is a single structure.

5. **Conclusion**:
- Therefore, the number of segments in the anal cerci of a cockroach is 1 for each cerci, and since there are two cerci, we can say there are 2 anal cerci, but in terms of segments, it is 1 segment per cerci.

### Final Answer:
The number of segments in the anal cerci of a cockroach is 1 (for each cerci).

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